汉字输入法中（）是无重码的。
A.五笔字型
B.智能ABC
C.区位码
D.全拼输入法
参考答案：C
风痧的病变部位在（）
A.肺卫
B.肺胃
C.肺心
D.肺脾
E.肺肾
School started at eight, but Anna at that time. [ ]
A. is sleeping
B. slept
C. has slept
D. was sleeping
